Brick-cleaning machine



Feb. 27, 1923. 1,446,896

' N. T. FULLER BRICK CLEANING MACHINE Filed Feb. 15, 1921 2 sheets-sheet1 filial;

' IN V EN TOR.

ATTORNEY Heb. 27, 19.23. 1,446,896

N. T. FULLER I BRICK CLEANING MACHINE rile Feb. 15, 1921 g sheets-sheet2 Emi % INVENTOR.

ATTORNEY.

I to provide a cutter and a brick holding and." feeding means which willenable the bricks.

Patented Feb. 7, 1923.

nnrrsn stares rete t inane uvnnson 'r. FULLER, or nnw ennronn,messnorrosnrrsl v Enron-CLEANING MAoHrnnfi A ncatan filed'Ecbruary 15,1921. "Serial no. truest.

T 0 all whom it may concern I Be it known that I, NnLsoN TL FULLER, acitizen of the United States, residing at New Bedford, in'the county ofBristol and State of Massachusetts, have invented new and usefulImprovements in Brick-Cleaning Machines, of which the following aspecifurther object 'of'the invention is to provide a rotating cutterfor effecting removal of the mortar, and to provide a series ofresharpened and replaced.

movable cutter blades which can be removed,

A. still further object of the invention is to be gradually moved oradvanced into the effective cutting plane of the cutter to therebyremove the mortar. t i

Other and further objects will be later set forth and manifested in thecourse of the following description. In the drawings: p f 'Figure 1, isa front elevation of the invention: 1'

Figure 2, is an end elevation: Figure 3, is an enlarged detail view intop plan and partly broken away of the cutting wheel:

Figure 1, is a rear side elevation of the cutting wheel;

Figure 5 is an enlarged section on line 5-5 of Figure 4:, and

Figure 6, is a detail perspective 'view of one of the cutting blades.

In proceeding in accordance with the present invention, any suitablesupporting frame may be employed, for example a structure embodying ahorizontal base 1 having supporting legs 2 and a table or work bed 3held by standards 4.

A shaft 5 is journaled in bearings 6 and has a loose pulley 7 and a fastpulley 8 thereon, with a belt 8' trained about the driving wheel of asuitable motor 9. A cut ter wheel 10, preferably of cast form, ismounted on the front end of the. shaft 5, and is formed with a series ofradial slots 11, inclined with respect to the plane of ropose.

"tation ofthe' wheel as depicted in Figurcfil of the drawings.The'bottoms of the inner ends of the slots are inclined downwardly "andinwardly to form undercut parts in which the approximately innerV-shaped ends or toes 12 ofthe cutter blades13 are conformably engagedso as to beheld against movement outwardly of the slots. In order torigidly secure the-blades in the slots, the outer ends thereofIha'vef'lugs'l engaged byaring 15 hinged at 16 andihavmg its endssecured together by suitable fastening device for instance the clamping[screw 17 depictedin Figures land 3 of the drawings. The ring 15 is heldfixed with relation to'the wheel'by means'of angular or L-shapedclamping arms 18fequipped'with' screws 19 that bear against the rearface of the cutter wheel. Obviously as many of these arms or dogs 18maybe employed as may be found necessary for the stated pur- The meansfor feeding the bricks to the cutter embody a bearing 20 attached to thetable 3 and in which a rod 21 has sliding 'movement,-the

justable "stop I is arranged on 'the ta-' holding or guiding and rodhaving a face plate 22 secured thereto to engage the'brick's and movefsarne into engagement" wlth the cutter." An ad-' ble adjacent to the"face plate-22.' The' outer end of the rod 21' is equipped with spacednuts or collars 2 l-between which acurved and slotted arm operates, the

connected to a depending link 26. The

ed bythe bed or base '1. A "spring'29' is latter being pivoted at 26'tothe table "3 and also connected to the treadle and to the table so as toreturn the treadle to normal upon depression thereof. A hood or guard 30surrounds the cuttingwheel and is secured at itsends to the base l. 1

In operation the motoris started and rotates the cutter-clockwise ortowards the stop 23, the brick being'placed with one end" i I or sideengaged with the stop and a second side or end engaged with the plate22,v whereupon the treadle is depressed by-the' foot of the operator toeffect. inward movement of the face plate andthereby of the brick towardthe cutter, the latter removing the mortar according to the speed atwhich the brick is fed thereto. In this way the mortar can be removed bya somewhat grinding or slicing action on the mortar and in this mannerall faces or ends of the bricks can be freed of the mortar.

It will be further seen that the cutter operates in a direction down onthe brick and also in a direction towards the stop, consequently thebrick requires no further holding, the face plate 22 also contributingin proper support of the brick during the cutting action. Upon releaseof the treadle the spring instantly moves the face plate away from thecutter so that the brick can be easily and quickly removed or turned topresent another face to the cutter. The table 3v is arranged adjacent tothe front end of the shaft 5 and extends diametrically of the cutterwheel so that the action of the cutting blades will be as justdescribed.

at i ql l fil isl -l a b k c a g. machine, cutter neludin's a hen ngredia slots the inner ends of which are undercut, bladesfitted in theslots and havingtheir inner ends shaped to engage the said-undercut endwalls ofthe slots, lugs on the outer ends of the blades, a splitring-engaging over the lugs to hold the blades in the slots, andclampingarms on the ring to hold the latter to the Wheel. 4 p

2. In a brick cleaning machine, a base, a. shaftsupported thereabove,means to drive the shaft, a cutter wheel on the front end of the shaft,a table supported by and above the base and; extending diametricallyacross thewheel, a stirrup carried by the base and depending therefrom,a foot trea-dle pivoted to the stirrup, feeding means for the bricksarranged on the table, and means actuated by thetreadle tooperate saidfeedingmeans.

3. In a brick cleaningmachine, a cutter including aowheel having radialgrooves in its front face and having undercut parts at theinner-endsofthe grooves,vbl ades having their n e v nds shaped to e a e:n the nde t pa s and; av ng ess n their outer ends the outer edges ofwhich, lugs lie substantially flush with theperiphe'ry of the wheel, aring seated on the periphery of the wheel and on said outer edges of thelugs and having an inwardly extending part engaged with the front sidesof the lugs, inwardly extending parts on the ring extending over theback face of the wheel, set screws projected through the last namedparts and impinged against the back of the wheel, means to rotate thewheel, and a support on which the bricks are placed and moved to engagethe blades.

4L. In a brick cleaning machine, a cutter including a wheel havingradial grooves in its front face and having undercut parts at the inner,ends of the grooves, blades having their inner ends shaped to engage inthe undercut parts and having lugs on their outer ends, a ring seated onthe periphery of the wheel and havin an lnwardly fev-v tending partengaged with the front sides of the lugs, means to secure the ring tothe wheel and for causing the inwardly extending part thereof to drawthe lugs against the bottomsof the groovesand for preventing movementofthe blades longitudinally of the grooves, means to rotatethe wheel and asupport on which the bricks are-placed and moved to engage theblades.

5. In a brick cleaning machineya wheel having radial grooves. which areundercut at their innner ends, blades fitted in. the

grooves and having shoulders at-their outer ,ends, a member engaged overthe periphery of the wheel and havinga front part engaging the shouldersto hold the blades against all movement in the grooves, meansto securethe member to the wheel, means to rotate the wheel, and a support onwhich the bricks areplaced: and. moved to engage the blades. 7

In testimony whereof I have hereunto set my handin-presenceof twosubscribing witnesses. I

NELSON T. FULLER: \Vitnesses HENRY W. MASON, ROBERT A. TERRY.

